Category: Oracle

December 24

One of the most (idiotic posts /) read posts on this website is “Oracle 11g – SQL*Plus Command Line Options“. Somehow syntax examples do well via Google…

(So before the end of the year I want to try if I can beat that one…).

The other post was created after a having made a typo on the command line.

Today, since a long long time, after seeing that help for sqlplus is installed during a default database install, I thought, lets check it once again..

The lists for reserved words for SQL and PL/SQL (in this case Oracle 11g) can be handy. The following is a simple method to check, that is if help is installed.

😎

December 22

This is hopefully one of the first posts about how to secure, setup, a proper APEX environment seen from a DBA perspective. Because this website is mainly about XMLDB, it is also about the XDB protocol server and currently not about using Apache or the (apparently another way of doing things) new upcoming APEX Listener.

The behavior of the XDB Protocol Server is controlled by its xdbconfig.xml file. This xdbconfig.xml file is restricted to an XML Schema called xdbconfig.xsd. Both can be found in the XMLDB folders. The xdbconfig.xml can be found in the root folder. The xdbconfig.xsd file is part of Oracle XML Schemata and can be found in the /sys/schemas/PUBLIC/xmlns.oracle.com/xdb/ folder.

The xdbconfig.xml and xdbconfig.xsd files are, as all files and folders in XMLDB, secured/controlled via Access Control Lists, ACL files. The xdbconfig.xml file is controlled via the /sys/acls/all_owner_acl.xml ACL file. The xdbconfig.xsd file is controlled via the /sys/acls/bootstrap_acl.xml ACL file.

The security ACL settings for those files (resources as files and folders are called in XMLDB):

all_owner_acl.xml:

December 4

My presentation of 2nd of December during the UKOUG Conference… So what was in it? Mainly appetizers of how some useful things work and a little bit high level concepts. I demonstrated, I hope, new ways, with (some) foundations coming from XML DB functionality. How to interface with the outside world, for example, by directly saving and selecting from multiple XML files, on disk, from your database or getting or pushing data from/to the internet, like RSS data, getting data for your Google Maps API or easily setting up a SOAP web service.

So among others:

  • How to enable, disable the Protocol Server and to see its Status
  • Overview of the Protocol Server configuration file xdbconfig.xml, Its contents and meaning
  • Memory structures that effect the shared server and therefore also the Protocol Server
  • Protocol HTTP API’s like the PL/SQL Gateway, DBURI (oradb) and Native Database Web Services (orawsv)
  • An overview how the Native Database Web Services works + DEMO
  • An overview how the DBURI servlet works + DEMO
  • An overview of URITypes of  HTTPUriType and XDBUriType’s + DEMO’s
  • The possibilties of combining BFILENAME and XML, like selecting and save files directly from disk
  • An overview of Repository Event’s, how it works demonstrated via a simple DEMO